unity 在windows上 用代码 添加蓝牙搜索功能 详细说明比如使用的动态库如何下载
时间: 2023-12-14 16:40:27 浏览: 61
在Unity中添加蓝牙搜索功能需要借助第三方插件或动态库。以下是一个基于Windows平台的蓝牙搜索功能的示例代码,使用了32位的Win32 API库。
1. 首先,下载和安装32位的Win32 API库。其中包含了蓝牙搜索相关的函数。
2. 在Unity中创建一个C#脚本,通过DllImport导入Win32 API库。如下所示:
```c#
using System.Runtime.InteropServices;
public class BluetoothSearch : MonoBehaviour
{
[DllImport("ws2_32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern int WSALookupServiceBegin(ref BLUETOOTH_DEVICE_SEARCH_PARAMS pbtsp, ref BluetoothSearchHandle phLookup);
[DllImport("ws2_32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern int WSALookupServiceNext(BluetoothSearchHandle hLookup, int cFlags, ref int pcRecordsReturned, ref BLUETOOTH_DEVICE_INFO pbtDeviceInfo);
[DllImport("ws2_32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern int WSALookupServiceEnd(BluetoothSearchHandle hLookup);
// Win32 API结构体
[StructLayout(LayoutKind.Sequential)]
internal struct BLUETOOTH_DEVICE_SEARCH_PARAMS
{
public int dwSize;
public bool fReturnAuthenticated;
public bool fReturnRemembered;
public bool fReturnUnknown;
public bool fReturnConnected;
public bool fIssueInquiry;
public byte cTimeoutMultiplier;
public IntPtr hRadio;
}
[StructLayout(LayoutKind.Sequential)]
internal struct BLUETOOTH_DEVICE_INFO
{
public int dwSize;
public ulong Address;
public uint ulClassofDevice;
public bool fConnected;
public bool fRemembered;
public bool fAuthenticated;
public SYSTEMTIME stLastSeen;
public SYSTEMTIME stLastUsed;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 248)]
public string szName;
}
internal struct SYSTEMTIME
{
public ushort wYear;
public ushort wMonth;
public ushort wDayOfWeek;
public ushort wDay;
public ushort wHour;
public ushort wMinute;
public ushort wSecond;
public ushort wMilliseconds;
}
internal struct BluetoothSearchHandle
{
public IntPtr handle;
}
// 蓝牙搜索函数
public void SearchBluetoothDevices()
{
BLUETOOTH_DEVICE_SEARCH_PARAMS searchParams = new BLUETOOTH_DEVICE_SEARCH_PARAMS();
searchParams.dwSize = Marshal.SizeOf(searchParams);
searchParams.fReturnAuthenticated = true;
searchParams.fReturnRemembered = true;
searchParams.fReturnUnknown = true;
searchParams.fReturnConnected = true;
searchParams.fIssueInquiry = true;
searchParams.cTimeoutMultiplier = 2;
BluetoothSearchHandle hLookup = new BluetoothSearchHandle();
BLUETOOTH_DEVICE_INFO deviceInfo = new BLUETOOTH_DEVICE_INFO();
deviceInfo.dwSize = Marshal.SizeOf(deviceInfo);
int searchResult = WSALookupServiceBegin(ref searchParams, ref hLookup);
if (searchResult != 0)
{
Debug.LogError("WSALookupServiceBegin failed with error code: " + searchResult);
return;
}
int devicesFound = 0;
while (WSALookupServiceNext(hLookup, 0, ref devicesFound, ref deviceInfo) == 0)
{
Debug.Log("Device found: " + deviceInfo.szName);
}
WSALookupServiceEnd(hLookup);
}
}
```
3. 在Unity中创建一个按钮或任何其他触发器,将其与上述C#脚本中的SearchBluetoothDevices函数绑定,以启动蓝牙搜索。
这是一个简单的示例,可以帮助你添加蓝牙搜索功能到你的Unity应用程序中。你还可以根据自己的需要进行修改和扩展。
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